On Wednesday night's episode of the Late Show With David Letterman, the 38-year-old confessed that after the birth of their daughter last year, his infatuation for his Gossip Girl spouse has grown even stronger!

In fact, Ryan is loving it so much that he's trying to get on ALL aspects of the parenting action… including breastfeeding! At the Sundance Film Festival party for his flick Mississippi Grind, the actor talked about it, saying:

"I gotta jump in and do all those sorts of things. I mean, I've even tried breastfeeding… It's frustrating for the baby and frankly disturbing for me … not well is the answer."

LOLz!

We're sure he and Blake are already world class parents… but leave the feeding to Blake! Ha!